classifier vs algorithm

classifier and algorithm both are nouns.

Word	Noun	Adjective	Verb	Adverb
classifier	Yes	No	No	No
algorithm	Yes	No	No	No

As nouns, algorithm is a hypernym of classifier; that is, algorithm is a word with a broader meaning than classifier:

classifier: an algorithm that implements classification.
algorithm: a precise rule (or set of rules) specifying how to solve some problem

Other hypernyms of classifier include algorithmic program, algorithmic rule.

classifier (noun)	algorithm (noun)
an algorithm that implements classification.	a precise rule (or set of rules) specifying how to solve some problem
a word or morpheme used in some languages in certain contexts (such as counting) to indicate the semantic class to which the counted item belongs
a person who creates classifications